A Deerfield Beach man has been charged with BUI manslaughter after test results show he was drunk when he crashed a boat in Delray Beach, killing one of his passengers.

Blood test results reveal that Mandy Romeu, 42, had nearly twice the legal limit of alcohol in his blood when the accident happened on May 8, according to the Florida Fish and Wildlife Conservation Commission.

The charges come more than a month after Romeu was arrested on charges of vessel homicide in the case.

Romeu slammed a 35-foot speedboat boat into a navigation marker in the Intracoastal Waterway, which threw passenger Christopher Smith, 31, overboard. Smith was found dead about an hour later, state wildlife officials said. Smith's sister, Alexandra Smith, 36, also was riding in Romeu's boat.

No one was wearing a life jacket, officials said. Romeu and Alexandra Smith were uninjured.

The boat was going 30 mph when it crashed near Atlantic Avenue at about 2:30 a.m., according to the arrest report. It is not clear whether the area had speed restrictions, authorities said.

During an interview with police, Romeu admitted to drinking four glasses of rum and Coke between 7 p.m. and midnight Friday, both before and during the boating trip, according to an arrest report.

Romeu was arrested on May 8 and released two days later from the Palm Beach County Jail on a $25,000 bond, according to jail records. He is also charged with reckless operation of a vehicle and violating navigational rules.

Commission records show Romeu has no previous boating violations or citations in Florida.